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Table 1 Mycotoxicoses in cattle and horses associated with fungal infections of grasses or cereals by members of the Clavicipitaceae family, based on data from Radostits[2] and Mostrom and Jacobson[3]

From: Ergot alkaloid intoxication in perennial ryegrass (Lolium perenne): an emerging animal health concern in Ireland?

Fungus Mycotoxin Disease Clinical signs and pathogenesis
[Grass & cereal]
Neotyphodium lolii Lolitrems (Lolitrem B), an indole-diterpene toxin Ryegrass staggers When disturbed gross incoordination, falling hypersensitivity. Functional derangement of nervous tissue function. No histological lesions
[Perennial ryegrass (Lolium perennae)]
Neotyphodium coenophialum Ergovaline, an ergot alkaloid Fescue toxicosis Low milk yield or weight gain, hypersalivation, seek shade. Depression of blood prolactin concentrations
[Tall fescue (Festuca arundinaceae)]   Fescue foot Loss of tail switch, distal limbs, tail tip gangrene. Local vasoconstriction restricts blood supply
[Perennial ryegrass (Lolium perennae)] Prolonged gestation Long gestation, dystocia, abortion, stillbirth, agalactia. Vasoconstriction cause placental edema, reducing circulating prolactin
Claviceps purpurea A range of ergot alkaloids, principally ergotamine, but also ergocristine, ergosine, ergocorine and ergocryptine Ergotism Lameness, gangrene of lower limbs, ear tips, loss of tail switch. Arteriolar spasm causes deficient blood supply body parts
[Cereals, rye, triticale, grains, grasses] Hyperthermia Hyperthermia, salivation, dyspnea. Reduced blood supply to skin reduces heat loss